Radio, Stereo, and Compact Disc: Testing and Inspection

Troubleshooting





R-1 : Replace the audio head unit
1. Check the same problems after replaceing the audio head unit






R-2 : Check the power connection of audio head unit.
1. Remove the audio head unit.
2. Check the specified condition of terminal.










R-3 : Check the steering wheel remote control
1. Check the steering wheel remote control connector specification






R-4 : Check the wiring harness and connector
1. Remove the audio head unit















R-5 : Check the wiring harness and connector
1. Remove the audio head unit
2. Check the output of audio head unit and external amplifier using the oscilloscope















R-6 : Radio Broadcast cannot be Received (Bad reception)
1. Check the radio broadcast reception after replacing the audio head unit










2. Check the antenna jack










3. Check the antenna amp input voltage (Refer to "Antenna - Glass antenna circuit inspection"










4. Check the feeder cable connection










5. Check again the radio broadcast reception after replacing the external amplifier










6. Check and repair the glass antenna.

R-7 : Check that speakers are installed tightly.










1. Noise source description















2. Repair or replace the noise source

R-8 : Check again after replacing the audio head unit














1. Check the input signal of Illumination (+)
FOR PA30A





FOR BA900















2. Check the illumination (-) input signal using the oscilloscope
FOR PA30A





FOR BA900















3. Check the vehicle illumination control unit.

R-9 : Test after replacing the audio head unit










1. Check the illumination (-) input signal using the oscilloscope
FOR PA30A





FOR BA900





Is PWM output waveform changed according to vehicle illumination control ?










2. Check the illumination detent input signal.
FOR PA30A, BA900















3. Check the vehicle illumination control unit.

R-10 : Check the mic input condition.
For PA30A





For BA900















1. Test again after replacing the B/T mic

R-11 : Test after replacing the audio head unit










1. Test after replacing the multimedia jack.










2. Check the multimedia jack connector.
For PA30A





For BA900















3. Check again after replacing the external input device with another one.

R-12 : Disc cannot be inserted or ejected right after insertion
1. Is the ignition key at ACC or ON?










2. Power ON reset. Disconnect the 2 audio fuses, wait 5 minutes with ignition switch off. And then insert both fuse. Then turn the ignition key ON. Is CD ejected?










3. If CD does not eject, don't try removing it. The player may be damaged. Please replace the CD player.

R-13 : Sound sometimes skips when parking
1. Is CD face scratched or dirty?










2. Does it play properly if CD is replaced with an existing proper CD?